研究了外腔式PbWO4拉曼激光器在纳秒脉冲抽运下的输出特性。利用主动调Q的Nd:YAG激光器产生的脉冲宽度为31.4ns,最大输出能量为200mJ的1064nm激光作为抽运源。拉曼激光谐振腔采用的是平凹腔设计。测量了输出的拉曼光脉宽与抽运能量的关系,分析了输出的拉曼光脉冲波形图和光谱图,测量了输出的拉曼光脉冲能量与抽运能量的关系,计算了转换效率与抽运能量的关系。当注入抽运光能量达到42mJ时,得到了一阶斯托克斯光脉冲的最大能量和转换效率分别为10mJ和24%,获得外腔式PbWO4拉曼激光器的一阶斯托克斯光脉冲波长为1177.6nm,典型的一阶斯托克斯光脉冲脉宽为20ns。 The output characteristics of an external cavity PbWO4 Raman laser with nanosecond pulse pumping are studied. A 1064nm laser with a pulse width of 31.4ns and a maximum output energy of 200mJ was produced by an active Q-switched Nd: YAG laser as a pump source. Raman laser resonator is a flat cavity design. The relationship between the Raman pulse width and the pump energy was measured. The Raman pulse waveform and the spectrogram were analyzed. The relationship between the Raman pulse energy and the pump energy was measured. The conversion efficiency Relationship with pumping energy. When the pumping energy reaches 42mJ, the maximum energy and the conversion efficiency of the first order Stokes light pulse are 10mJ and 24%, respectively. The first order Stokes light pulse of the external cavity PbWO4 Raman laser is obtained Wavelength of 1177.6nm, a typical first-order Stokes pulse width of 20ns.